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Pipeline line third-party construction early warning method based on time domain features and spatio-temporal information

A time-domain feature and pipeline technology, applied in the recognition of patterns in signals, instruments, characters and patterns, etc., can solve the problems of complex interfering activities, difficult to achieve accurate early warning of construction conditions along the line, and reduce the cost of manual line inspection. , the effect of improving accuracy and reducing labor intensity

Active Publication Date: 2020-08-14
浙江浙能天然气运行有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the wide distribution of oil and gas pipelines, the terrain and landform they pass through are different, and the disturbing activities nearby are complex. If only the vibration sources along the pipeline are treated in the same way, the soil, soil quality, human life and other environmental characteristics along the pipeline are ignored. It is difficult to realize accurate early warning of the construction situation along the line

Method used

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  • Pipeline line third-party construction early warning method based on time domain features and spatio-temporal information
  • Pipeline line third-party construction early warning method based on time domain features and spatio-temporal information
  • Pipeline line third-party construction early warning method based on time domain features and spatio-temporal information

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Embodiment 1

[0040] Such as figure 1 As shown, the third-party construction early warning method along the pipeline based on time-domain features and time-space information in this embodiment includes the following steps:

[0041] S1, Waveform data acquisition, threshold triggering and data preprocessing;

[0042] Real-time data collection along the pipeline through distributed optical fiber sensors laid along the pipeline waveform data, and for Threshold triggering and data preprocessing are performed on waveform data to obtain suspicious bands and corresponding suspicious defense zones;

[0043] Specifically, distributed optical fiber sensors are laid along the pipeline, and phase-sensitive optical time domain reflectometers are used to The interference mechanism of the Rayleigh scattered light reflected from different parts of the optical fiber reaches the photodetector at the same time and interferes. It is used to detect various vibrations along the pipeline, and then infers t...

Embodiment 2

[0084] The third-party construction early warning method along the pipeline based on time-domain features and time-space information in this embodiment differs from Embodiment 1 in that:

[0085] In the process of extracting the corresponding time-domain features from the waveform of the suspicious band:

[0086] Only retain the time-domain features extracted from the waveform of the suspicious band as the time-domain features corresponding to the suspicious band;

[0087] Or, only retain the time-domain features that are first differentially processed and then extracted from the waveform of the suspicious band, as the time-domain feature corresponding to the suspicious band;

[0088] To meet different application requirements.

[0089] Other steps can refer to embodiment 1.

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Abstract

The invention belongs to the technical field of security along oil and gas pipelines, and particularly relates to a pipeline line third-party construction early warning method based on time domain features and space-time information. The method comprises the following steps: S1, acquiring waveform data along a pipeline in real time through distributed optical fiber sensors laid along the pipeline,and performing threshold triggering and data preprocessing on the waveform data to obtain a suspicious waveband and a suspicious defense area corresponding to the suspicious waveband; s2, extractingcorresponding time domain features according to the waveform of the suspicious wave band, and obtaining time period features and geographic features corresponding to the suspicious defense area; and S3, inputting the time domain features, the time period features and the geographic features into an XGBoost classification model, and judging whether a vibration source corresponding to the waveform of the suspicious waveband is constructed by a third party or not in real time so as to carry out early warning. According to the method, the time period characteristics and geographic characteristicsof each defense area are considered, and the time domain characteristics of the waveform are combined to realize intelligent early warning for the third-party construction along the pipeline.

Description

technical field [0001] The invention belongs to the technical field of security along oil and gas pipelines, and in particular relates to a third-party construction early warning method along pipelines based on time-domain features and space-time information. Background technique [0002] Construction by third parties within the safe scope of the pipeline is collectively referred to as "third-party construction". For a long time, in order to maintain the integrity of oil and gas pipelines and prevent third-party construction damage, huge manpower and financial resources have been invested. However, third-party construction of oil and gas pipelines is highly random and difficult to predict and control, which makes monitoring difficult. At present, manual inspection of pipelines As the main means to control third-party construction risks and ensure the safety of pipeline operation, it relies on patrolling on foot, strengthens patrol during high-incidence periods of constructio...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/62
CPCG06F2218/02G06F2218/08G06F2218/12G06F18/214
Inventor 陈积明滕卫明解剑波钱济人杨秦敏范海东沈佳园张国民李清毅周元杰周君良
Owner 浙江浙能天然气运行有限公司
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